4-[(1E)-3-[(3S)-4-Carboxy-3-(β-D-glucopyranosyloxy)-3-methyl-1-oxobutoxy]-1-propen-1-yl]-2,6-dimethoxyphenyl β-D-glucopyranoside

4-[(1E)-3-[(3S)-4-Carboxy-3-(β-D-glucopyranosyloxy)-3-methyl-1-oxobutoxy]-1-propen-1-yl]-2,6-dimethoxyphenyl β-D-glucopyranoside